Base for a desk



FIG. 1 is a front perspective view of the base for a desk.

FIG. 2 is a left side view of the base for a desk, the right side viewbeing a mirror image thereof.

FIG. 3 is a top view of the base for a desk.

FIG. 4 is a front view of the base for a desk.

FIG. 5 is a back view of the base for a desk; and,

FIG. 6 is a front perspective view thereof, the broken lines are forenvironmental purposes only and form no part of the claimed design.

The ornamental design for a base for a desk, as shown and described.